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..FIng g(u) ,a,b and the integralhttp://webwork2.math.nau.edu/webwork...a65ced5551.png

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- Dec 1st 2008, 10:03 AMsssdefinite integral
- Dec 1st 2008, 11:57 AMJason Bourne
$\displaystyle \int_{\frac{\pi}{6}}^{\frac{\pi}{2}} \frac{cosx}{sin^7x}dx = \int_{sin(\frac{\pi}{6})}^{1} \frac{1}{u^7}du$

by using the substitution u = sin(x) - Dec 1st 2008, 12:04 PMJason Bourne